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[DaFlake]

Quote: Originally Posted by aid (original)

ok call me stupid if you want but i just want to clarify that the 15 % pulley produces the smallest power improvement and the 19% produces the largest

i.e 15% runs fine
17% runs ok but may require remap
19% needs remap
???????????????

p.s thank you very much for the help

Depends on who you talk too. Once you go past 15% you have to start worrying about heat management. This can actually cause a loss of performance rather than an increase. 17% is still fairly safe but most people have found that 19% is pointless. This is why 15 and 17 are the most common.

15% is a safe bet as it is the closest to the JCW (14.5 approx).
17% is a good bump but you may need some additional tweaking.
19% you will need to really tweak to get the performance where it should be.